The lengths of the sides of a triangle are 4n, 2n+10, and 7n-15. is there a value of n that makes the trangle equilateral? explain. Wouldn't the angles have to equal 180, so it couldn't be n=5?

Question

Mathematics

Makena Myers

6 January, 16:16

The lengths of the sides of a triangle are 4n, 2n+10, and 7n-15. is there a value of n that makes the trangle equilateral? explain. Wouldn't the angles have to equal 180, so it couldn't be n=5?

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Answers (1)

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Franco Galloway · Answer 1

Equilatral

equi-equal

lateral-side

sides have to be equal

therefor

4n=2n+10=7n-15

minus 2n from everybody

2n=10=5n-15

2n=10

divide 2

n=5

see if that works

10=5n-15

10=5 (5) - 15

10=25-15

10=10

true

n=5

yha